package springboot.com.util;

import org.springframework.beans.BeansException;
import org.springframework.context.ApplicationContext;
import org.springframework.context.ApplicationContextAware;
import org.springframework.stereotype.Component;
/**
* 普通类调用Spring bean对象：
* 说明：
* 1、此类需要放到App.java同包或者子包下才能被扫描，否则失效。
* @author Administrator
*/
@Component
public class SpringUtil implements ApplicationContextAware{
	private static ApplicationContext applicationContext = null;

   @Override
 public void setApplicationContext(ApplicationContext applicationContext) throws BeansException {
 if(SpringUtil.applicationContext == null){
       SpringUtil.applicationContext = applicationContext;
 }
  System.out.println("---------------------------------------------------------------------");
  System.out.println("---------------------------------------------------------------------");
 System.out.println("---------------com.kfit.base.util.SpringUtil------------------------------------------------------");
 System.out.println("========ApplicationContext配置成功,在普通类可以通过调用SpringUtils.getAppContext()获取applicationContext对象,applicationContext="+SpringUtil.applicationContext+"========");
  System.out.println("---------------------------------------------------------------------");
 }

 //获取applicationContext
 public static ApplicationContext getApplicationContext() {
 return applicationContext;
 }

 //通过name获取 Bean.
 public static Object getBean(String name){
 return getApplicationContext().getBean(name);
 }

 //通过class获取Bean.
 public static <T> T getBean(Class<T> clazz){
 return getApplicationContext().getBean(clazz);
 }

 //通过name,以及Clazz返回指定的Bean
 public static <T> T getBean(String name,Class<T> clazz){
 return getApplicationContext().getBean(name, clazz);
 }
}